| 1 | Paluxy Oil & Gas, LLC | Forney, TX 75126 | Oil & Gas Operator | May 2024 |
| 2 | Panhandle Oil & Gas Inc | Oklahoma City, OK 73112-5688 | Oil & Gas Operator | May 2007 |
| 3 | Parker & Parsley Development L.P | Midland, TX 79702 | Oil & Gas Operator | Oct 2007 |
| 4 | Patno Oil & Gas Company | Zapata, TX 78076 | Oil & Gas Operator | May 2024 |
| 5 | Patterson Petroleum, Inc. | Snyder, TX 79550 | Oil & Gas Operator | Feb 2000 |
| 6 | Patton, E. N. Oil Company, Inc. | Abilene, TX 79604 | Oil & Gas Operator | May 2024 |
| 7 | Perdido Energy, LLC | Houston, TX 77251 | Oil & Gas Operator | May 2024 |
| 8 | Phillips Petroleum Company | Houston, TX 77251 | Oil & Gas Operator | Mar 2013 |
| 9 | Pioneer Natural Res. USA, Inc. | Irving, TX 75038 | Oil & Gas Operator | May 2024 |
| 10 | Pogo Panhandle 2004, L.P. | Houston, TX 77002 | Oil & Gas Operator | Oct 2017 |
| 11 | Pogo Producing Company | Houston, TX 77002 | Oil & Gas Operator | Jan 2008 |
| 12 | Prima Exploration, Inc. | Denver, CO 80206 | Oil & Gas Operator | Mar 2024 |
| 13 | Prize Operating Company | Grapevine, TX 76051 | Oil & Gas Operator | Aug 2016 |
| 14 | Proex Energy Management, L.L.C. | Spring, TX 77386 | Oil & Gas Operator | May 2024 |
| 15 | Pure Resources, L.P. | Midland, TX 79701 | Oil & Gas Operator | Mar 2006 |
| 16 | Purvis Operating Co. | Midland, TX 79710 | Oil & Gas Operator | May 2024 |